.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15,23,32,.92);
  backdrop-filter: blur(10px);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 78px;
  gap: 1rem;
}
.site-title { color: #fff; font-size: 1.4rem; font-weight: 700; }
.custom-logo { max-height: 56px; width: auto; }
.site-nav ul { display: flex; gap: 1.2rem; list-style: none; margin: 0; padding: 0; }
.site-nav a { color: #fff; }
.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  padding: 0;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  margin: 5px 0;
}

.site-footer {
  background: var(--itkf-dark);
  color: #fff;
  margin-top: 4rem;
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 2rem;
  padding: 3rem 0;
}
.site-footer__grid h4,
.site-footer__grid p,
.site-footer__grid a,
.site-footer__grid li { color: #fff; }
.site-footer__grid ul { list-style: none; padding: 0; margin: 0; }
.site-footer__grid li { margin-bottom: .45rem; }
.site-footer__bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 1rem 0; }
.home-section { padding: 4.5rem 0; }
.home-section--soft { background: #fbfaf7; }
.home-section--dark { background: var(--itkf-dark); color: #fff; }
.content-area, .archive-layout { padding: 3rem 0; }
.single-layout {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
  gap: 2rem;
  padding: 3rem 0;
}
.split-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2rem;
  align-items: center;
}
.pagination-wrap { margin-top: 2rem; }
.sidebar-stack { display: grid; gap: 1rem; }